158 lines
5 KiB
Dart
158 lines
5 KiB
Dart
// import "dart:isolate";
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// import "dart:math";
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// import "dart:typed_data";
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// import "package:logging/logging.dart";
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// import "package:photos/services/object_detection/models/predictions.dart";
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// import 'package:photos/services/object_detection/models/recognition.dart';
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// import 'package:photos/services/object_detection/tflite/cocossd_classifier.dart';
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// import "package:photos/services/object_detection/tflite/mobilenet_classifier.dart";
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// import "package:photos/services/object_detection/tflite/scene_classifier.dart";
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// import "package:photos/services/object_detection/utils/isolate_utils.dart";
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// class ObjectDetectionService {
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// static const scoreThreshold = 0.35;
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// final _logger = Logger("ObjectDetectionService");
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// late CocoSSDClassifier _objectClassifier;
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// late MobileNetClassifier _mobileNetClassifier;
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// late SceneClassifier _sceneClassifier;
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// late IsolateUtils _isolateUtils;
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// ObjectDetectionService._privateConstructor();
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// bool inInitiated = false;
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// Future<void> init() async {
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// _isolateUtils = IsolateUtils();
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// await _isolateUtils.start();
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// try {
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// _objectClassifier = CocoSSDClassifier();
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// } catch (e, s) {
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// _logger.severe("Could not initialize cocossd", e, s);
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// }
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// try {
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// _mobileNetClassifier = MobileNetClassifier();
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// } catch (e, s) {
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// _logger.severe("Could not initialize mobilenet", e, s);
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// }
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// try {
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// _sceneClassifier = SceneClassifier();
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// } catch (e, s) {
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// _logger.severe("Could not initialize sceneclassifier", e, s);
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// }
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// inInitiated = true;
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// }
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// static ObjectDetectionService instance =
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// ObjectDetectionService._privateConstructor();
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// Future<Map<String, double>> predict(Uint8List bytes) async {
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// try {
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// if (!inInitiated) {
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// return Future.error("ObjectDetectionService init is not completed");
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// }
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// final results = <String, double>{};
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// final methods = [_getObjects, _getMobileNetResults, _getSceneResults];
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// for (var method in methods) {
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// final methodResults = await method(bytes);
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// methodResults.forEach((key, value) {
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// results.update(
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// key,
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// (existingValue) => max(existingValue, value),
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// ifAbsent: () => value,
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// );
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// });
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// }
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// return results;
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// } catch (e, s) {
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// _logger.severe(e, s);
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// rethrow;
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// }
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// }
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// Future<Map<String, double>> _getObjects(Uint8List bytes) async {
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// try {
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// final isolateData = IsolateData(
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// bytes,
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// _objectClassifier.interpreter.address,
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// _objectClassifier.labels,
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// ClassifierType.cocossd,
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// );
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// return _getPredictions(isolateData);
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// } catch (e, s) {
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// _logger.severe("Could not run cocossd", e, s);
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// }
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// return {};
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// }
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// Future<Map<String, double>> _getMobileNetResults(Uint8List bytes) async {
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// try {
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// final isolateData = IsolateData(
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// bytes,
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// _mobileNetClassifier.interpreter.address,
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// _mobileNetClassifier.labels,
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// ClassifierType.mobilenet,
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// );
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// return _getPredictions(isolateData);
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// } catch (e, s) {
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// _logger.severe("Could not run mobilenet", e, s);
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// }
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// return {};
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// }
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// Future<Map<String, double>> _getSceneResults(Uint8List bytes) async {
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// try {
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// final isolateData = IsolateData(
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// bytes,
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// _sceneClassifier.interpreter.address,
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// _sceneClassifier.labels,
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// ClassifierType.scenes,
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// );
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// return _getPredictions(isolateData);
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// } catch (e, s) {
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// _logger.severe("Could not run scene detection", e, s);
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// }
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// return {};
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// }
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// Future<Map<String, double>> _getPredictions(IsolateData isolateData) async {
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// final predictions = await _inference(isolateData);
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// final Map<String, double> results = {};
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// if (predictions.error == null) {
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// for (final Recognition result in predictions.recognitions!) {
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// if (result.score > scoreThreshold) {
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// // Update the result score only if it's higher than the current score
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// if (!results.containsKey(result.label) ||
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// results[result.label]! < result.score) {
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// results[result.label] = result.score;
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// }
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// }
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// }
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// _logger.info(
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// "Time taken for ${isolateData.type}: ${predictions.stats!.totalElapsedTime}ms",
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// );
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// } else {
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// _logger.severe(
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// "Error while fetching predictions for ${isolateData.type}",
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// predictions.error,
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// );
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// }
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// return results;
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// }
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// /// Runs inference in another isolate
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// Future<Predictions> _inference(IsolateData isolateData) async {
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// final responsePort = ReceivePort();
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// _isolateUtils.sendPort.send(
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// isolateData..responsePort = responsePort.sendPort,
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// );
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// return await responsePort.first;
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// }
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// }
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